CN1815373A - Bottom coating for photoelectric photoreceptor and its forming method and photoelectric photoreceptor - Google Patents

Bottom coating for photoelectric photoreceptor and its forming method and photoelectric photoreceptor Download PDF

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Publication number
CN1815373A
CN1815373A CN 200510005179 CN200510005179A CN1815373A CN 1815373 A CN1815373 A CN 1815373A CN 200510005179 CN200510005179 CN 200510005179 CN 200510005179 A CN200510005179 A CN 200510005179A CN 1815373 A CN1815373 A CN 1815373A
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powder
function
undercoat
photoelectric body
photoelectric
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毕建中
杨振仁
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GUANGHUA DEVELOPMENT SCIENCE AND TECHNOLOGY Co Ltd
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GUANGHUA DEVELOPMENT SCIENCE AND TECHNOLOGY Co Ltd
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Abstract

The base coat includes resin, and solid powder dispersed in the resin evenly. The said solid powder includes one or two powders from first powder, second powder and third powder. The first powder is inorganic powder with surface covered by conductive layer. The second powder is silicon dioxide powder with surface modified by siloxane. The third powder is mixed powder of siloxane compound.

Description

Photoelectric body and function undercoat and its formation method and photoelectric photoreceptor
Technical field
The invention relates to a kind of photoelectric photoreceptor, and be particularly to a kind of photoelectric photoreceptor with undercoat of special composition.
Background technology
The application of general common photoelectric photoreceptor comprises laser printer, duplicating machine etc., and its video picture principle and process are all similar, all is to utilize photoelectric photoreceptor to do the acquisition of pattern, transfer and imaging, below just explains at the print procedure of laser printer.
The print procedure of laser printer, comprise cloth electricity (charging), exposure (exposure), video picture (development), image rotation (transfer), photographic fixing (fusing), remove (cleaning) and remove picture (erasure) the seven big steps of etc.ing, and these steps be continuous always in print procedure and repeat to finish to printing till.Below do explanation summarily at these steps.
At first, the user assigns print command in application program after, will be full of negative charge or positive charge on the photoelectric photoreceptor in the laser printer, wherein photoelectric photoreceptor is as being Organophotoreceptor (organic photoconductor is called for short OPC) or photosensitive drums (OPCdrum); Then again that printer processes is good view data sees through laser radiation to photoelectric photoreceptor, exposes on relative position; And because carbon dust has and the electrical opposite electric charge of photoelectric photoreceptor, so when the photoelectric photoreceptor quick rotation was passed through powder box, the carbon dust that the position that is exposed just can the adsorption band opposite charges made the image video picture; Next paper transmission entered machine intimate and makes paper have the electric charge opposite with carbon dust, utilizing the principle that there is a natural attraction between the sexes to make carbon dust image rotation on the photoelectric photoreceptor to paper; And in order to make carbon dust more closely attached on the paper, utilize again well heater then with the mode of High Temperature High Pressure with the carbon dust photographic fixing on paper, this also is the reason that the paper that just printed all has higher temperature; Next with scraper with carbon dust clearing residual on the photoelectric photoreceptor; At last static is removed, made the current potential of photoelectric surface be returned to original state, so that launch next circulation.
As mentioned above, all be to be that move again and again at the center in fact in whole printing with the photoelectric photoreceptor, the index of whole printer quality so photoelectric photoreceptor can be said so.
Fig. 1 is the essential structure of photoelectric photoreceptor 100; comprise aluminium base 110; undercoat (undercoating layer; be called for short UCL) 120; electric charge barrier layer (blockinglayer; be called for short BL) 130; charge generating layer (charge generation layer; be called for short CGL) 140; electric charge transmitting layer (charge transfer layer; be called for short CTL) 150 with protective seam (protective layer; be called for short PL) 160; its action principle is that laser is shone by multiple field photoelectric photoreceptor 100 tops; make charge generating layer 140 produce electron hole pair 146; wherein electronics 144 is derived by the below, and hole 142 is passed to multiple field photoelectric photoreceptor 100 surfaces via electric charge transmitting layer 150.
The product that does not use undercoat 120 is also arranged in the market, but just need this moment to use the surface to have one deck anode film, quality aluminium base 110 preferably, but the required cost of the multiple field photoelectric photoreceptor of this type is high a lot of with respect to the cost of products of using undercoat 120, not value-for-money.Aluminium base 110 surfacenesses (roughness) of general quality are big, defective is more and reflectivity is bigger, so in the laser imaging step, can produce many harmful effects, descend, aluminium base 110 surface imperfection are printed as resolution etc., so must use the surface imperfection that one deck undercoats 120 cover aluminium base 110, the reflection situation of improving laser more, and because undercoat 120 has certain thickness, so the surfaceness that can reduce aluminium base 110 is to negative effect that print quality caused.
Generally speaking, the principal ingredient of undercoat 120 comprises the solvent that then resin, dissolving resin and the adjustment viscosity of usefulness are used, and is used for covering aluminium base 110 defectives and reduces the pressed powder that laser light reflects, the conductive materials of conduction electron etc.And in that to make undercoat 120 common to following point: pressed powder dispersion degree poor (United States Patent (USP) utilizes the boiling point of undercoat organic solvent and viscosity to overcome No. 6759174), actual print quality is poor, and (No. the 4579801st, United States Patent (USP) is arranged in pairs or groups conductive powder as undercoat with phenolics; United States Patent (USP) utilizes for No. 5017449 a special nylon resin to be used as the undercoat resin, so as to promoting the electrical properties of photoreceptor; No. 5432034 utilization of United States Patent (USP) selects for use the method for copolymerized macromolecule to overcome; United States Patent (USP) utilizes for No. 5556728 the collocation of melamine resin and aromatic carboxyl acid to solve; United States Patent (USP) utilizes for No. 5532093 the electric charge barrier layer that contains metallic nickel to overcome; United States Patent (USP) utilizes for No. 5744271 surface-treated anatase titanium dioxide collocation polyamide/normal-butyl ultraps to increase print quality; United States Patent (USP) utilizes for No. 6017664 conducting polymer/alkali metal salt collocation resin and inorganic pigment to solve the external environment factor for the influence of printing; United States Patent (USP) utilizes for No. 5391448 the non-conductive made undercoat of titania powder collocation polyamide to increase print quality; The utilization of No. the 5468584th, United States Patent (USP) is added the stannic oxide powder that contains phosphorus and solve the influence of environment to printing in undercoat), covering property of powder is not enough and can't cover the surface imperfection of aluminium base 110 or produce interference fringe that (United States Patent (USP) utilizes for No. 4518669 on undercoat overbrushing one deck polyamide floor to improve the surface imperfection of base material again; United States Patent (USP) utilizes for No. 5763125 the collocation of self-control base material to solve with unsaturated polyester resin/epoxy resin/three kinds of made conducting films of material of trickle conductive powder; United States Patent (USP) utilizes acid to make the aluminium base oxidation No. 5162185, produce one deck anode film and suppress interference fringe), the electrical conductivity of conductive materials does not reach that (No. 4954406 explanation of United States Patent (USP) utilizes thermoplastic resin and thermoset resin to be used as the resin of undercoat, and prepared photoreceptor can get a suitable conduction value in the ideal range; The number that United States Patent (USP) utilizes for No. 5484694 stannic oxide powder to implant the amount of antimony solves; United States Patent (USP) utilizes the titania powder of needle-like for No. 5489496, controls its addition and diameter/length and recently reaches required electrical conductivity; United States Patent (USP) utilizes for No. 5384190 carbon black (carbon black) to add that a conductive powder reaches the required resistance value of undercoat, and further overcome the influence of external environment to printing) etc. problem, electrical conductivity Ruo Taigao wherein, then can make by corona (corona) or cloth electricity wheel (primary charge roller, be called for short PCR) etc. cloth electricity (charge acceptance) magnitude of voltage of mode low excessively, if electrical conductivity is low excessively, can make photoelectric photoreceptor 100 surperficial rest potentials (residual volt) too high.
Industry be badly in need of to propose a kind of method that can make undercoat in the photoelectric photoreceptor have good powder dispersion degree, enough covering property and desirable electrical conductivity.
Summary of the invention
In view of this, one of purpose of the present invention just provides a kind of photoelectric body and function undercoat and its formation method and photoelectric photoreceptor, to solve above-mentioned and other problem.
For reaching above-mentioned purpose, the invention provides a kind of photoelectric body and function undercoat, comprising: resin; And a plurality of pressed powders are dispersed in the above-mentioned resin, and this pressed powder comprises: (a) first powder and (b) second powder and one of the 3rd powder or both, wherein first powder is that inorganic powder, second powder for surperficial coated with conductive layer are that SiO 2 powder, the 3rd powder for surperficial tool siloxane modification (modify) is mixing (hybrid) powder for silicone compounds.
Photoelectric body and function undercoat of the present invention, this conductive layer is metal, metal oxide or conducting polymer.
Photoelectric body and function undercoat of the present invention, this metal are to select from the group that Sb, Cu, Au, Ag and Ni formed.
Photoelectric body and function undercoat of the present invention, this metal oxide are to select from the group that SnO2, indium tin oxide and antimony tin oxide are formed.
Photoelectric body and function undercoat of the present invention, this conducting polymer is polyaniline or polypyrrole.
Photoelectric body and function undercoat of the present invention, this inorganic powder is TiO2, ZnO or BaSO4.
Photoelectric body and function undercoat of the present invention, the particle size range of this first powder are 0.01 μ m~50 μ m.
Photoelectric body and function undercoat of the present invention, the particle size range of this second powder are 0.01 μ m~50 μ m.
Photoelectric body and function undercoat of the present invention, the particle size range of this second powder are 0.1 μ m~10 μ m.
Photoelectric body and function undercoat of the present invention, the particle size range of the 3rd powder are 0.01 μ m~50 μ m.
Photoelectric body and function undercoat of the present invention, the particle size range of the 3rd powder are 0.1 μ m~10 μ m.
Photoelectric body and function undercoat of the present invention, this pressed powder comprise this first powder and this second powder, and wherein the weight ratio of this first powder and this second powder was roughly 1: 100~100: 1.
Photoelectric body and function undercoat of the present invention, the weight ratio of this first powder and this second powder was roughly 1: 5~5: 1.
Photoelectric body and function undercoat of the present invention, this pressed powder comprises this first powder and the 3rd powder, and wherein the weight ratio of this first powder and the 3rd powder was roughly 1: 100~100: 1.
Photoelectric body and function undercoat of the present invention, the weight ratio of this first powder and the 3rd powder was roughly 1: 5~5: 1.
Photoelectric body and function undercoat of the present invention, this pressed powder comprises this first powder, this second powder and the 3rd powder, and wherein the weight of the weight of this first powder and this second powder and the 3rd powder and ratio be roughly 1: 100~100: 1, the weight ratio of this second powder and the 3rd powder was roughly 1: 20~20: 1.
Photoelectric body and function undercoat of the present invention, the weight of the weight of this first powder and this second powder and the 3rd powder and ratio be roughly 1: 5~5: 1.
Photoelectric body and function undercoat of the present invention, the weight ratio of this second powder and the 3rd powder was roughly 1: 1.
For reaching above-mentioned purpose, the invention provides a kind of method that forms photoelectric body and function undercoat, comprising: solvent is provided; Resin is dissolved in the above-mentioned solvent; A plurality of pressed powders are dispersed in above-mentioned resin and the above-mentioned solvent, to form mixed liquor, and this pressed powder comprises: (a) first powder and (b) second powder and one of the 3rd powder or both, and wherein first powder is that inorganic powder, second powder for surperficial coated with conductive layer are that SiO 2 powder, the 3rd powder for surperficial tool siloxane modification (modify) is mixing (hybrid) powder for silicone compounds; Above-mentioned mixed liquor is formed on the base material, to form undercoat.
The method of formation photoelectric body and function undercoat of the present invention, this conductive layer is metal, metal oxide or conducting polymer.
The method of formation photoelectric body and function undercoat of the present invention, this metal are to select from the group that Sb, Cu, Au, Ag and Ni formed.
The method of formation photoelectric body and function undercoat of the present invention, this metal oxide are to select from the group that SnO2, indium tin oxide and antimony tin oxide are formed.
The method of formation photoelectric body and function undercoat of the present invention, this conducting polymer is polyaniline or polypyrrole.
The method of formation photoelectric body and function undercoat of the present invention, this inorganic powder is TiO2, ZnO or BaSO4.
The method of formation photoelectric body and function undercoat of the present invention, the particle size range of this first powder are 0.01 μ m~50 μ m.
The method of formation photoelectric body and function undercoat of the present invention, the particle size range of this second powder are 0.01 μ m~50 μ m.
The method of formation photoelectric body and function undercoat of the present invention, the particle size range of this second powder are 0.1 μ m~10 μ m.
The method of formation photoelectric body and function undercoat of the present invention, the particle size range of the 3rd powder are 0.01 μ m~50 μ m.
The method of formation photoelectric body and function undercoat of the present invention, the particle size range of the 3rd powder are 0.1 μ m~10 μ m.
The method of formation photoelectric body and function undercoat of the present invention, the weight ratio of this pressed powder and this resin was roughly 1: 100~1: 1.
The method of formation photoelectric body and function undercoat of the present invention, the weight ratio of this pressed powder and this resin was roughly 1: 50~1: 2.
The method of formation photoelectric body and function undercoat of the present invention, this pressed powder comprise this first powder and this second powder, and wherein the weight ratio of this first powder and this second powder was roughly 1: 100~100: 1.
The method of formation photoelectric body and function undercoat of the present invention, the weight ratio of this first powder and this second powder was roughly 1: 5~5: 1.
The method of formation photoelectric body and function undercoat of the present invention, this pressed powder comprises this first powder and the 3rd powder, and wherein the weight ratio of this first powder and the 3rd powder was roughly 1: 100~100: 1.
The method of formation photoelectric body and function undercoat of the present invention, the weight ratio of this first powder and the 3rd powder was roughly 1: 5~5: 1.
The method of formation photoelectric body and function undercoat of the present invention, this pressed powder comprises this first powder, this second powder and the 3rd powder, and wherein weight and this second powder of this first powder and the 3rd powder weight and the ratio weight ratio that is roughly 1: 100~100: 1, this second powder and the 3rd powder be roughly 1: 20~20: 1.
The method of formation photoelectric body and function undercoat of the present invention, the weight of the weight of this first powder and this second powder and the 3rd powder and ratio be roughly 1: 5~5: 1.
The method of formation photoelectric body and function undercoat of the present invention, the weight ratio of this second powder and the 3rd powder was roughly 1: 1.
For reaching above-mentioned purpose, the invention provides a kind of photoelectric photoreceptor, comprising: base material; Undercoat is positioned on the above-mentioned base material, and this undercoat is to be the described photoelectric body and function of leading portion undercoat; And charge generating layer and electric charge transmitting layer are formed on the above-mentioned undercoat.
Description of drawings
Fig. 1 is a sectional view, in order to the structure of known photoelectric photoreceptor to be described;
Fig. 2 is a sectional view, in order to the structure of photoelectric photoreceptor of explanation a preferred embodiment of the present invention;
Fig. 3 is a sectional view, in order to the mealy structure of explanation a preferred embodiment of the present invention.
Embodiment
The present invention includes add two~three kinds of pressed powders in the undercoat of photoelectric body and function, the chemical constitution and the structure of these three kinds of powder are as described below:
First powder is for coating the inorganic powder of a conductive layer in the surface, its structure as shown in Figure 3, promptly general alleged nuclear (core) 310 shells (shell) 320 structures; The particle diameter of this first powder is about 0.01 μ m~50 μ m; The part of its center 310 comprises TiO 2, ZnO, BaSO 4Or carbon black pressed powders such as (carbon black); And the outer conductive layer that is coated with comprises metal, metal oxide or conducting polymer, and wherein metal is to select from the group that Sb, Cu, Au, Ag and Ni formed, and metal oxide is to select certainly in tin oxide (SnO 2), in the group that formed of indium tin oxide (indium tin oxide, be called for short ITO) and antimony tin oxide (antimony tin oxide is called for short ATO), conducting polymer is polyaniline (polyaniline) or polypyrrole (polypyrrole).
Second powder is a SiO 2 powder of modifying (modify) for surperficial tool siloxane, and its particle diameter is between 0.01 μ m~50 μ m, just when being 0.1 μ m~10 μ m.
The 3rd powder is mixing (hybrid) powder for silicone compounds, and its particle diameter is between 0.01 μ m~50 μ m, just when being 0.1 μ m~10 μ m.
And the use of pressed powder can comprise first powder and second powder, use first powder and the 3rd powder, use first powder and second powder and the three kinds of modes of the 3rd powder used, and the preferred proportion of being added is as described below:
If this pressed powder includes only first powder and second powder, its weight ratio was roughly 1: 100~100: 1, and preferred range is 1: 5~5: 1.
If this pressed powder includes only first powder and the 3rd powder, its weight ratio was roughly 1: 100~100: 1, and preferred range is 1: 5~5: 1.
If this pressed powder comprises first powder and second powder and the 3rd powder, then first powder and second powder, the overall weight ratio of the 3rd powder were roughly 1: 100~100: 1, preferred range is 1: 5~5: 1, and the weight ratio of second powder and the 3rd powder was roughly 1: 20~20: 1, was preferably 1: 1.
Second powder and the 3rd powder are because of the characteristics such as color (white), refractive index, particle diameter of itself, and be therefore if employed inorganic powder is made film in the collocation known technology, helpful on shading rate; If use second powder, the 3rd powder separately or both are used simultaneously, also possesses the effect of covering photoreceptor substrate surface defective.In general, diameter of particle just can make laser produce scattering (scatter) as if the luminous point size (spot size) greater than laser; Diameter of particle is as if the luminous point size (spot size) less than laser, laser then can pass powder, be radiated on the metal base, and metal base can form secondary imaging by reflector laser, this can form interference fringe (interfere ncefringe) on the printout result, print quality is affected.
And when the part of its nuclear of first powder (core) is inorganic powder, good shading effect, and the outer conductive layer that is coated itself also is opaque, so can both do a good modification and cover with defective for the roughness (roughness) of photoreceptor substrate surface.
In addition, because characteristics such as electric charge such as photoelectric photoreceptor generation itself, transmission make undercoat conduction value (conductivity) need in a particular range for use; If electric conductivity is very good, then cloth electricity (charge acceptance) magnitude of voltage by corona (corona) or cloth electricity wheel modes such as (primary charge roller are called for short PCR) can be low excessively; If electric conductivity is too poor, can make that the lip-deep rest potential of photoelectric photoreceptor (residualvolt) is too high, these two kinds of situations all can cause the defective on the printer prints.Therefore, if use first kind of powder or the conductive powder electric conductivity of being added very good separately, then can't reach the due character of photoelectric photoreceptor, but if add second powder and the 3rd powder, use in the lump with conductive powder, then can effectively make face resistance (ohm/sqr) value of undercoat maintain certain scope (about 10 6~10 9Ohm/sqr), making the electrical properties of photoelectric photoreceptor integral body can not produce cloth piezoelectric voltage value crosses low or the situation that rest potential is too high takes place.
In addition; there is the quality of disperseing uneven problem and reducing photoelectric photoreceptor in the powder regular meeting that is added in the undercoat; and three kinds of powder used in the present invention all belong to time micro-meter scale; and be to form in the mode of mixing (hybrid); therefore can in rete, can disperse uniformly; and the transmission for electronics can not cause obstruction, does not have too big resistance addition yet, so can solve the problem of powder dispersion degree.
So the function powder that the present invention utilized can promote the photoelectric characteristic of photoelectric photoreceptor, it all can significantly be promoted on face resistance (ohm/sqr), shading rate, electric property.
The method of formation undercoat of the present invention is earlier resin to be dissolved in the solvent, pressed powder is dispersed in the above-mentioned solution again, the dispersion liquid of gained is coated on the base material at last, to form a undercoat again.
The formation method of the photoelectric body and function undercoat of the following stated is one of its generation type, is not as limit:
At first utilize the mode of heated and stirred to mix resin and solvent, resin is dissolved in the solvent fully, wherein employed resin is as being vibrin, polyamide, epoxy resin and/or melamine resin etc., and employed solvent is as being methyl alcohol, ethanol etc.Then more above-mentioned pressed powder is dispersed in above-mentioned resin and the above-mentioned solvent, forms a mixed liquor, and the weight ratio of pressed powder that is added and resin is about 1/100~1/1, be preferably 1/50~1/2.Above-mentioned mixed liquor is formed on the base material, as aluminium base, with the formation undercoat, and generation type can be vertical immersion plating (dipping) etc. again.
Photoelectric photoreceptor of the present invention is as shown in Figure 2; after being to form coating layer 220 in the substrate 210; form layers such as electric charge barrier layer 230, charge generating layer 240, electric charge transmitting layer 250 and protective seam 260 more in regular turn; and the employed material of these layers can be selected from the function material of tool corresponding function, can be as the electric charge barrier layer that polyamide (polyamide resin), charge generating layer can be titanium dioxide phthalocyanine (TiOPc), electric charge transmitting layer can be hydrazone based compound (hydrazone) and can be phenolics (phenolic resin) with protective seam.
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, be described in detail below:
Embodiment one
The base coat solution configuration:
Table 1 is the configuration of the base coat solution of embodiment one:
Table 1
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: surperficial tool siloxane is modified the SiO 2 powder of (modify) The 3rd powder: the mixing of silicone compounds (hybrid) powder
Ratio 16 units 16 units 1 unit 4 units 1 unit 1 unit 1 unit
At first with two solvents and two resins (polyamide, available from Toray, trade name: CM8000; Vibrin, available from TOYOBO, trade name: VYLON 220) mix mutually according to listed ratio, be heated to 60 ℃ and stir and treat that resin dissolves fully; Then add first powder, and under 30 ℃, disperseed 6 hours with sand mill (sand mill); Then second powder and the 3rd powder add again, disperse 4 hours, promptly finish solution allocation.
Wherein first powder is the ET500W that is produced for Ishihara Techno Corp., and its nuclear is TiO 2, shell is Sb and SnO 2, size distribution is 200~300nm.
Wherein second powder is to be white powder, and particle diameter is about 800nm.
Wherein the 3rd powder is to be white powder, and particle diameter is about 2 μ m.
The making of photoelectric photoreceptor:
With the aluminium cylinder of diameter 30mm, length 260.5mm as base material, utilize the mode of vertical immersion plating (dipping) to come plated film, to form undercoat, the charge generation layer of the second layer and the 3rd layer the electric charge transmitting layer of ground floor, the coating film thickness of formed undercoat is about 3~5 μ m, and with 120 ℃ of bakings 1 hour, the coating film thickness of second layer charge generation layer is about 0.5 μ m, and with 80 ℃ of bakings 30 minutes, the coating film thickness of the 3rd layer charge transfer layer is about 20 μ m, and with 150 ℃ of bakings 1 hour.
The character of photoreceptor and conducting film measures and the print quality test:
One, to measure mode as follows for the resistance value of undercoat: undercoat is coated with into the square film that 4cm * 4cm and thickness are about 15 μ m, after the oven dry, does measurement with four-point probe again, ask for a mean value.The result is as shown in table 12.
Two, the measurement mode of the electrical properties of photoreceptor is as follows: this is to utilize the mode of " light induced potential decay (photo-induced discharging curve is called for short PIDC) " to measure, its principle is for imposing the surface of photoreceptor the negative voltage (Vo) of one pact-690 volt in the mode of corona (corona) cloth electricity, under unexposed situation, kept 2 seconds, make surface potential reach dark imaging current potential (dark development potential, V Ddp), opening wavelength then is that 780nm, energy density are 2 μ J/cm 2The Halogen lamp LED source of sec, the surface potential that reached after 2 seconds of exposing be called residual electric potential (residualpotential, Vr).And half damping capacity (half-exposure energy, E 1/2) definition be V DdpReduce to the required luminous energy of its 1/2 value, and the low E of healing 1/2The value representation sensitivity is higher.The result is as shown in table 13.
Three, the method for testing of print quality is as follows under the ambient temperature and moisture: utilize for 55% time HP-4300 commercial lasers printer to print (black and white at 25 ℃, relative humidity, 45 pages/minute), and compare, inquire at general common printing shortcoming such as positive negative ghost (ghosting), blackness (density), interference fringe (interference fringe), resolution (resolution) etc.The result is as shown in table 14.
Embodiment two
Present embodiment is identical with embodiment one, and it is different, as shown in table 2 to remove the powder ratio:
Table 2
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: the SiO 2 powder that surperficial tool siloxane is modified The 3rd powder: the mixed-powder of silicone compounds
Ratio 16 units 16 units 1 unit 4 units 0 unit 1 unit 1 unit
Embodiment three
Present embodiment is identical with embodiment one, and it is different, as shown in table 3 to remove the powder ratio:
Table 3
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: surperficial tool siloxane is modified the SiO 2 powder of (modify) The 3rd powder: the mixing of silicone compounds (hybrid) powder
Ratio 16 units 16 units 1 unit 4 units 1 unit 1 unit 0 unit
Embodiment four
Present embodiment is identical with embodiment one, and it is different, as shown in table 4 to remove the powder ratio:
Table 4
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: surperficial tool siloxane is modified the SiO 2 powder of (modify) The 3rd powder: the mixing of silicone compounds (hybrid) powder
Ratio 16 units 16 units 1 unit 4 units 1 unit 0 unit 1 unit
Embodiment five
Present embodiment is identical with embodiment one, and it is different, as shown in table 5 to remove the powder ratio:
Table 5
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: the SiO 2 powder that surperficial tool siloxane is modified The 3rd powder: the mixed-powder of silicone compounds
Ratio 16 units 16 units 1 unit 4 units 0 unit 1 unit 0 unit
Embodiment six
Present embodiment is identical with embodiment one, and it is different, as shown in table 6 to remove the powder ratio:
Table 6
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: surperficial tool siloxane is modified the SiO 2 powder of (modify) The 3rd powder: the mixing of silicone compounds (hybrid) powder
Ratio 16 units 16 heavy positions 1 unit 4 units 0 unit 0 unit 1 unit
Embodiment seven
Present embodiment is identical with embodiment one, and it is different to remove employed first powder, is to change the Eeonomer that Eeonyx Corporation is produced into 500F, its nuclear is carbon black, and shell is polyaniline (polyaniline), and particle diameter is about 40nm.
Embodiment eight
Present embodiment is identical with embodiment one, and it is different to remove employed first powder, is to change the Eeonomer that Eeonyx Corporation is produced into 3002, its nuclear is carbon black, and shell is polypyrrole (polypyrrole), and particle diameter is about 200nm.
Embodiment nine
Present embodiment is identical with embodiment one, and it is different to remove employed vibrin, is to change the NPEL-128E epoxy resin (epoxy) that the South Asia plastics are produced into.
Embodiment ten
Present embodiment is identical with embodiment one, and it is different to remove employed vibrin, is to change the RESIMENE melamine resin (melamine) that SOLUTIA Corp. is produced into.
Embodiment 11
Present embodiment is identical with embodiment four, and it is different to remove employed the 3rd powder diameter, is to change about 5 μ m (MSP-K050 that is produced by NIKKO RICA Corp.) into.
Embodiment 12
Present embodiment is identical with embodiment one, and it is different to remove employed the 3rd powder diameter, is to change about 13 μ m (MSP-350 that is produced by NIKKO RICA Corp.) into.
Embodiment 13
Present embodiment is identical with embodiment one, and it is different, as shown in table 7 to remove resin ratio:
Table 7
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: surperficial tool siloxane is modified the SiO 2 powder of (modify) The 3rd powder: the mixing of silicone compounds (hybrid) powder
Ratio 16 units 16 units 2 units 8 units 1 unit 1 unit 1 unit
Embodiment 14:
Present embodiment is identical with embodiment one, and it is different, as shown in table 8 to remove the powder ratio:
Table 8
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: surperficial tool siloxane is modified the SiO 2 powder of (modify) The 3rd powder: the mixing of silicone compounds (hybrid) powder
Ratio 16 heavy positions 16 units 2 units 8 units 1 unit 2.5 unit 2.5 unit
Embodiment 15
Present embodiment is identical with embodiment four, and it is different, as shown in table 9 to remove the powder ratio:
Table 9
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: surperficial tool siloxane is modified the SiO 2 powder of (modify) The 3rd powder: the mixing of silicone compounds (hybrid) powder
Ratio 16 units 16 units 2 units 8 units 0.5 unit 0 unit 2 units
Embodiment 16
Present embodiment is identical with embodiment three, and it is different, as shown in table 10 to remove resin ratio:
Table 10
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer Second powder: surperficial tool siloxane is modified the SiO 2 powder of (modify) The 3rd powder: the mixing of silicone compounds (hybrid) powder
Ratio 16 heavy positions 16 units 2 units 8 units 0.1 unit 4 units 0 unit
Comparing embodiment one
The base coat solution configuration:
Table 11 is the configuration of the base coat solution of comparing embodiment one:
Table 11
Kind Solvent Resin (solid) The function pressed powder
Thin Methyl alcohol Butanols Vibrin Polyamide (CM8000) First powder: the inorganic powder of surperficial coated with conductive layer
Ratio 16 units 16 units 1 unit 4 units 1 unit
At first two solvents and two resins are mixed mutually according to listed ratio, be heated to 60 ℃ and stir and treat that resin dissolves fully; Then add first powder, and under 30 ℃, disperseed 6 hours, promptly finish solution allocation with sand mill (sandmill).
Wherein first powder is the ET500W that is produced for Ishihara Techno Corp., and its nuclear is TiO 2, shell is Sb and SnO 2, size distribution is 200~300nm.
In addition, the making of photoelectric photoreceptor and photoreceptor measure all identical with embodiment one with the print quality test with the character of conducting film.
Comparing embodiment two
This comparing embodiment is identical with comparing embodiment one, and it is different to remove employed first powder, is to change the Eeonomer that Eeonyx Corporation is produced into 500F, its nuclear is that polyaniline (polyaniline), particle diameter are about 40nm for carbon black, shell.
Comparing embodiment three
This comparing embodiment is identical with comparing embodiment one, and it is different to remove employed first powder, is to change the FT1000 that Ishihara Techno Corp. is produced into, and its nuclear is TiO 2, shell is Sb and SnO 2, size distribution is D:0.13 μ m, L:1.68 μ m.
Comparing embodiment four
This comparing embodiment is identical with comparing embodiment one, and it is different to remove employed first powder, is to change the Eeonomer that Eeonyx Corporation is produced into 3002, its nuclear is carbon black, and shell is polypyrrole (polypyrrole), and particle diameter is about 200nm.
Measurement, test result and discussion:
The resistance value of undercoat measures:
Table 12
Sample Resistance value (ohm/sqr.)
Embodiment 1 3.4×10 7
Embodiment 2 2.5×10 7
Embodiment 3 1.8×10 7
Embodiment 4 3.3×10 7
Embodiment 5 1.1×10 8
Embodiment 6 2.8×10 8
Embodiment 7 1.5×10 7
Embodiment 8 6.6×10 7
Embodiment 9 7.8×10 7
Embodiment 10 1.35×10 8
Embodiment 11 4.8×10 7
Embodiment 12 4.4×10 7
Embodiment 13 3.3×10 7
Embodiment 14 2.56×10 7
Embodiment 15 2.54×10 7
Embodiment 16 6.89×10 7
Comparing embodiment 1 6.55×10 7
Comparing embodiment 2 9×10 7
Comparing embodiment 3 2.56×10 8
Comparing embodiment 4 6.6×10 7
Blank aluminium base (anodizing is arranged) 1.4×10 9
Blank aluminium base (no anodizing) 1.7×10 8
Its desirable resistance value scope of photoreceptor in printer/duplicating machine actual operation approximately drops on 10 6~10 9Ohm/sqr., and by the test result of last table, the blank aluminium base of no anodizing is compared with the blank aluminium base that anodizing is arranged because lacked one deck anodizing film on its aluminium base, and measured resistance value result is less; In addition, the measured resistance value result of each embodiment and comparing embodiment all drops within the qualified resistance value scope, and only in fact desirable its character of photoreceptor should cooperate other test result comprehensively to judge.
The measurement of the electrical properties of photoreceptor:
Table 13
Sample Initial cloth electricity value V 0 Residual electric potential Vr E 1/2
Embodiment 1 700 30 0.098
Embodiment 2 710 40 0.11
Embodiment 3 700 30 0.099
Embodiment 4 700 30 0.099
Embodiment 5 712 50 0.11
Embodiment 6 715 50 0.111
Embodiment 7 700 30 0.099
Embodiment 8 701 30 0.1
Embodiment 9 705 32 0.1
Embodiment 10 710 55 0.12
Embodiment 11 701 35 0.1
Embodiment 12 703 36 0.1
Embodiment 13 720 35 0.1
Embodiment 14 700 35 0.1
Embodiment 15 710 36 0.1
Embodiment 16 703 30 0.1
Comparing embodiment 1 700 32 0.099
Comparing embodiment 2 702 32 0.1
Comparing embodiment 3 700 50 0.1
Comparing embodiment 4 701 32 0.1
In the last table, three kinds of listed data (V 0, Vr, E 1/2) laser energy and cloth piezoelectric voltage act on the corresponding value of action on the photoreceptor during by printer/duplicating machine real-world operation, these three kinds of data Ruo Taigao or too low, then print result can defectiveness, in short, V 0Too low, can cause printing bottom ash and occur, Vr is too high, has the ghost that is commonly called as and produces E 1/2Too big, then have direct influence for print qualities such as printing blackness and resolution.And the value of these three kinds of data depends on whether selecting for use suitably of photoreceptor material itself.
The comprehensive comparison sheet 13 electrical results and the 14 and 15 actual print results of tabulating down, comparing embodiment one is too little because of employed pressed powder particle diameter to comparing embodiment four, though be 0.099~0.1 on sensitivity therefore, but then interference fringe can occur during actual the printing, and this kind situation is even more serious after printing 10,000 pages.
Resolution was relatively poor when comparing embodiment two was printed to comparing embodiment four in zero page, the extreme difference that after printing 10,000 pages, then becomes, as for the resolution of comparing embodiment one after having passed through 10,000 pages printing, poor by becoming well, this is because selected pressed powder has only conductive powder, there is no collocation silicone compounds mixed-powder or with silicone compounds due to the SiO 2 powder of finishing.
In the electrical properties result of each embodiment and comparing embodiment, because its sensitivity E 1/2All, belong to sensitivity preferably, so blackness (density) value (I.D.value) is at least all more than 1.3 less than 0.12.
Only add the test (embodiment five) of second powder, only add the test (embodiment six) of the 3rd powder, vibrin is replaced to the test (embodiment ten) and the test (comparing embodiment three) of adding strip first powder of melamine resin (melamine), the electrical Vr as a result of gained all is equal to or greater than 50, the table residual electric potential is excessive, correspond among the result of printing test, no matter after can finding just to have begun printing or printing 10,000 pages, the generation of ghost (ghosting) can be arranged all.
Ambient temperature and moisture (25 ℃ of temperature, relative humidity 55%) is the test of print quality down:
Table 14
Print first page Ghost Blackness (I.D.value) Interference fringe Resolution
Embodiment 1 Do not have 1.44 Do not have Good
Embodiment 2 Do not have 1.39 Do not have Good
Embodiment 3 Do not have 1.4 Do not have Good
Embodiment 4 Do not have 1.4 Do not have Good
Embodiment 5 Slightly 1.38 Do not have Good
Embodiment 6 Slightly 1.38 Do not have Good
Embodiment 7 Do not have 1.35 Do not have Good
Embodiment 8 Do not have 1.35 Do not have Good
Embodiment 9 Do not have 1.33 Do not have Good
Embodiment 10 Slightly 1.33 Do not have Good
Embodiment 11 Do not have 1.39 Do not have Good
Embodiment 12 Do not have 1.39 Do not have Good
Embodiment 13 Do not have 1.4 Do not have Good
Embodiment 14 Do not have 1.4 Do not have Good
Embodiment 15 Do not have 1.4 Do not have Good
Embodiment 16 Do not have 1.4 Do not have Good
Comparing embodiment 1 Do not have 1.39 Slightly Good
Comparing embodiment 2 Do not have 1.32 Seriously Difference
Comparing embodiment 3 Slightly 1.32 Seriously Difference
Comparing embodiment 4 Do not have 1.35 Seriously Difference
Table 15
after print 10000pages Ghost Blackness (I.D.value) Interference fringe Resolution
Embodiment 1 Do not have 1.46 Do not have Good
Embodiment 2 Do not have 1.4 Do not have Good
Embodiment 3 Do not have 1.4 Do not have Good
Embodiment 4 Do not have 1.41 Do not have Good
Embodiment 5 Slightly 1.39 Do not have Good
Embodiment 6 Slightly 1.38 Do not have Good
Embodiment 7 Do not have 136 Do not have Good
Embodiment 8 Do not have 1.36 Do not have Good
Embodiment 9 Do not have 1.36 Do not have Good
Embodiment 10 Slightly 1.36 Do not have Good
Embodiment 11 Do not have 1.39 Do not have Good
Embodiment 12 Do not have 1.4 Do not have Good
Embodiment 13 Do not have 1.41 Do not have Good
Embodiment 14 Do not have 1.41 Do not have Good
Embodiment 15 Do not have 1.41 Do not have Good
Embodiment 16 Do not have 1.41 Do not have Good
Comparing embodiment 1 Do not have 1.3 Seriously Difference
Comparing embodiment 2 Do not have 1.3 Seriously Extreme difference
Comparing embodiment 3 Seriously 1.3 Seriously Extreme difference
Comparing embodiment 4 Do not have 1.3 Seriously Extreme difference
The above only is preferred embodiment of the present invention; so it is not in order to limit scope of the present invention; any personnel that are familiar with this technology; without departing from the spirit and scope of the present invention; can do further improvement and variation on this basis, so the scope that claims were defined that protection scope of the present invention is worked as with the application is as the criterion.
Being simply described as follows of symbol in the accompanying drawing:
100,200~photoelectric photoreceptor
110,210~base material
120,220~undercoat
130,230~electric charge barrier layer
140,240~charge generating layer
142~hole
144~electronics
146~electron hole pair
150,250~electric charge transmitting layer
160,260~protective seam
225~pressed powder
310~nuclear
320~shell

Claims (38)

1, a kind of photoelectric body and function undercoat is characterized in that described photoelectric body and function undercoat comprises:
One resin; And
A plurality of pressed powders are dispersed in the above-mentioned resin, and this pressed powder comprises:
One first powder;
One of one second powder and one the 3rd powder or both;
Wherein this first powder is the inorganic powder that coats a conductive layer for the surface, and this second powder is the SiO 2 powder of modifying for surperficial tool siloxane, and the 3rd powder is the mixed-powder for silicone compounds.
2, photoelectric body and function undercoat according to claim 1, it is characterized in that: this conductive layer is metal, metal oxide or conducting polymer.
3, photoelectric body and function undercoat according to claim 2 is characterized in that: this metal is to select from the group that Sb, Cu, Au, Ag and Ni formed.
4, photoelectric body and function undercoat according to claim 2 is characterized in that: this metal oxide is to select certainly in SnO 2, in the group that forms of indium tin oxide and antimony tin oxide.
5, photoelectric body and function undercoat according to claim 2, it is characterized in that: this conducting polymer is polyaniline or polypyrrole.
6, photoelectric body and function undercoat according to claim 1, it is characterized in that: this inorganic powder is TiO 2, ZnO or BaSO 4
7, photoelectric body and function undercoat according to claim 1 is characterized in that: the particle size range of this first powder is 0.01 μ m~50 μ m.
8, photoelectric body and function undercoat according to claim 1 is characterized in that: the particle size range of this second powder is 0.01 μ m~50 μ m.
9, photoelectric body and function undercoat according to claim 1 is characterized in that: the particle size range of this second powder is 0.1 μ m~10 μ m.
10, photoelectric body and function undercoat according to claim 1 is characterized in that: the particle size range of the 3rd powder is 0.01 μ m~50 μ m.
11, photoelectric body and function undercoat according to claim 1 is characterized in that: the particle size range of the 3rd powder is 0.1 μ m~10 μ m.
12, photoelectric body and function undercoat according to claim 1 is characterized in that: this pressed powder comprises this first powder and this second powder, and wherein the weight ratio of this first powder and this second powder is 1: 100~100: 1.
13, photoelectric body and function undercoat according to claim 12, it is characterized in that: the weight ratio of this first powder and this second powder is 1: 5~5: 1.
14, photoelectric body and function undercoat according to claim 1, it is characterized in that: this pressed powder comprises this first powder and the 3rd powder, and wherein the weight ratio of this first powder and the 3rd powder is 1: 100~100: 1.
15, photoelectric body and function undercoat according to claim 14, it is characterized in that: the weight ratio of this first powder and the 3rd powder is 1: 5~5: 1.
16, photoelectric body and function undercoat according to claim 1, it is characterized in that: this pressed powder comprises this first powder, this second powder and the 3rd powder, and wherein the weight of the weight of this first powder and this second powder and the 3rd powder and ratio be 1: 100~100: 1, the weight ratio of this second powder and the 3rd powder is 1: 20~20: 1.
17, photoelectric body and function undercoat according to claim 16 is characterized in that: the weight of the weight of this first powder and this second powder and the 3rd powder and ratio be 1: 5~5: 1.
18, photoelectric body and function undercoat according to claim 16, it is characterized in that: the weight ratio of this second powder and the 3rd powder is 1: 1.
19, a kind of method that forms photoelectric body and function undercoat is characterized in that the method for described formation photoelectric body and function undercoat comprises:
One solvent is provided;
One resin is dissolved in the above-mentioned solvent;
A plurality of pressed powders are dispersed in above-mentioned resin and the above-mentioned solvent, and forming a mixed liquor, and this pressed powder comprises:
One first powder;
One of one second powder and one the 3rd powder or both;
Wherein this first powder is the inorganic powder that coats a conductive layer for the surface, and this second powder is the SiO 2 powder of modifying for surperficial tool siloxane, and the 3rd powder is the mixed-powder for silicone compounds; And
Above-mentioned mixed liquor is formed on the base material, to form a undercoat.
20, the method for formation photoelectric body and function undercoat according to claim 19, it is characterized in that: this conductive layer is metal, metal oxide or conducting polymer.
21, the method for formation photoelectric body and function undercoat according to claim 20 is characterized in that: this metal is to select from the group that Sb, Cu, Au, Ag and Ni formed.
22, the method for formation photoelectric body and function undercoat according to claim 20 is characterized in that: this metal oxide is to select from the group that SnO2, indium tin oxide and antimony tin oxide are formed.
23, the method for formation photoelectric body and function undercoat according to claim 20, it is characterized in that: this conducting polymer is polyaniline or polypyrrole.
24, the method for formation photoelectric body and function undercoat according to claim 19, it is characterized in that: this inorganic powder is TiO2, ZnO or BaSO4.
25, the method for formation photoelectric body and function undercoat according to claim 19 is characterized in that: the particle size range of this first powder is 0.01 μ m~50 μ m.
26, the method for formation photoelectric body and function undercoat according to claim 19 is characterized in that: the particle size range of this second powder is 0.01 μ m~50 μ m.
27, the method for formation photoelectric body and function undercoat according to claim 19 is characterized in that: the particle size range of this second powder is 0.1 μ m~10 μ m.
28, the method for formation photoelectric body and function undercoat according to claim 19 is characterized in that: the particle size range of the 3rd powder is 0.01 μ m~50 μ m.
29, the method for formation photoelectric body and function undercoat according to claim 19 is characterized in that: the particle size range of the 3rd powder is 0.1 μ m, 10 μ m.
30, the method for formation photoelectric body and function undercoat according to claim 19, it is characterized in that: the weight ratio of this pressed powder and this resin is 1: 100~1: 1.
31, the method for formation photoelectric body and function undercoat according to claim 19, it is characterized in that: the weight ratio of this pressed powder and this resin is 1: 50~1: 2.
32, the method for formation photoelectric body and function undercoat according to claim 19 is characterized in that: this pressed powder comprises this first powder and this second powder, and wherein the weight ratio of this first powder and this second powder is 1: 100~100: 1.
33, the method for formation photoelectric body and function undercoat according to claim 32, it is characterized in that: the weight ratio of this first powder and this second powder is 1: 5~5: 1.
34, the method for formation photoelectric body and function undercoat according to claim 19, it is characterized in that: this pressed powder comprises this first powder and the 3rd powder, and wherein the weight ratio of this first powder and the 3rd powder is 1: 100~100: 1.
35, the method for formation photoelectric body and function undercoat according to claim 34, it is characterized in that: the weight ratio of this first powder and the 3rd powder is 1: 5~5: 1.
36, the method for formation photoelectric body and function undercoat according to claim 19, it is characterized in that: this pressed powder comprises this first powder, this second powder and the 3rd powder, and wherein weight and this second powder of this first powder and the 3rd powder weight and ratio be that the weight ratio of 1: 100~100: 1, this second powder and the 3rd powder is 1: 20~20: 1.
37, the method for formation photoelectric body and function undercoat according to claim 36 is characterized in that: the weight of the weight of this first powder and this second powder and the 3rd powder and ratio be 1: 5~5: 1.
38, the method for formation photoelectric body and function undercoat according to claim 36, it is characterized in that: the weight ratio of this second powder and the 3rd powder is 1: 1.
CN 200510005179 2005-02-01 2005-02-01 Bottom coating for photoelectric photoreceptor and its forming method and photoelectric photoreceptor Pending CN1815373A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539726B (en) * 2008-03-19 2012-06-20 京瓷美达株式会社 Laminated electrophotographic photoreceptor and image forming device
CN103694679A (en) * 2013-12-18 2014-04-02 上海日之升新技术发展有限公司 TLCP (Thermotropic Liquid Crystal Polyester)-reinforced conductive TiO2/PA composite material
CN103849137A (en) * 2014-01-27 2014-06-11 上海日之升新技术发展有限公司 Conductive TiO2/PA composite material and preparation method thereof
WO2016177007A1 (en) * 2015-05-05 2016-11-10 苏州斯迪克新材料科技股份有限公司 Method for preparing anti-aging transparent conductive thin film
CN107085836A (en) * 2017-05-16 2017-08-22 合肥工业大学 A kind of general ghost removing method in moving object segmentation

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101539726B (en) * 2008-03-19 2012-06-20 京瓷美达株式会社 Laminated electrophotographic photoreceptor and image forming device
CN103694679A (en) * 2013-12-18 2014-04-02 上海日之升新技术发展有限公司 TLCP (Thermotropic Liquid Crystal Polyester)-reinforced conductive TiO2/PA composite material
CN103849137A (en) * 2014-01-27 2014-06-11 上海日之升新技术发展有限公司 Conductive TiO2/PA composite material and preparation method thereof
CN103849137B (en) * 2014-01-27 2016-05-11 上海日之升新技术发展有限公司 Conduction TiO2/ PA composite and preparation method thereof
WO2016177007A1 (en) * 2015-05-05 2016-11-10 苏州斯迪克新材料科技股份有限公司 Method for preparing anti-aging transparent conductive thin film
CN107085836A (en) * 2017-05-16 2017-08-22 合肥工业大学 A kind of general ghost removing method in moving object segmentation
CN107085836B (en) * 2017-05-16 2020-03-03 合肥工业大学 Universal ghost eliminating method in moving object detection

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